/Engine/Plugins/MovieScene/MovieRenderPipeline/Source/MovieRenderPipelineRenderPasses/Public/MoviePipelineDeferredPasses.h
[UCLASS](Programming/UnrealArchitecture/Reference/Classes#classdeclaration)(BlueprintType) class UMoviePipelineDeferredPass_PathTracer : public [UMoviePipelineDeferredPassBase](API\Plugins\MovieRenderPipelineRenderPasses\UMoviePipelineDeferredPassBase)
bool
bReferenceMotionBlur
When enabled, the path tracer will blend all spatial and temporal samples prior to the denoising and will disable post-processed motion blur.